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Finding the Fourth Proportional to 13,541.44, 18,687.44 and 7,573.76

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Solution

The fourth proportional to 13,541.44, 18,687.44 and 7,573.76 is: 10,451.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.44 : 18,687.44 = 7,573.76 : x
  2. Step 2: Convert to fraction form
    13,541.44/18,687.44 = 7,573.76/x
  3. Step 3: Cross multiply
    13,541.44x = 18,687.44 × 7,573.76
  4. Step 4: Simplify right side
    13,541.44x = 141,534,232.29
  5. Step 5: Solve for x
    x = 141,534,232.29/13,541.44
  6. Step 6: Final answer
    x = 10,451.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.